For which commit?
-- Christian
On 18 January 2019 at 09:35AM, Christoph Hellwig wrote:
Hi Christian,
can you check if the debug printks in this patch trigger?
diff --git a/kernel/dma/direct.c b/kernel/dma/direct.c
index 355d16acee6d..e46c9b64ec0d 100644
--- a/kernel/dma/direct.c
+++ b/kernel/dma/direct.c
@@ -118,8 +118,11 @@ struct page *__dma_direct_alloc_pages(struct device *dev,
size_t size,
page = NULL;
}
}
- if (!page)
+ if (!page) {
page = alloc_pages_node(dev_to_node(dev), gfp, page_order);
+ if (!page)
+ pr_warn("failed to allocate memory with gfp 0x%x\n",
gfp);
+ }
if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {
__free_pages(page, page_order);
@@ -139,6 +142,10 @@ struct page *__dma_direct_alloc_pages(struct device *dev,
size_t size,
}
}
+ if (!page) {
+ pr_warn("failed to allocate DMA memory!\n");
+ dump_stack();
+ }
return page;
}
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